Qt/win：showMaximized() 在无框窗口上重叠任务栏

发布于 2024-12-02 19:57:34 字数 1061 浏览 4 评论 0原文

我正在构建一个没有默认窗口边框的 Qt 应用程序作为无框窗口。窗口函数是通过在 QMainWindow 中设置窗口标志来包含的，例如：

    MainDialog::MainDialog(QWidget *parent):
        QMainWindow(parent), currentProject(NULL), currentUser(NULL),
        aViews(new QList<AViewForm*>()),
        bViews(new QList<BViewForm*>()),
        cViews(new QList<CViewForm*>())
    {

        ui.setupUi(this);
        this->statusBar()->showMessage(tr(""));
        this->setWindowFlags(Qt::Window | Qt::FramelessWindowHint |  Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint | Qt::WindowSystemMenuHint);

        ...
     }

MainWindow 内有一个 .ui 文件，这就是为什么我无法从 QDesktopWidget 继承。我现在遇到的问题是应用程序在最大化时覆盖 Windows 任务栏。

情况下找出操作系统桌面的可用高度

availableGeometry().height()

我现在的问题：是否有可能在没有QDesktopWidget 的方法的？我在文档中找不到任何内容:(

这里其他人问了类似的问题，但使用了 QWidget 而不是 QMainWindow，

我很高兴收到有关我的问题的任何提示。

原文

I'm building an Qt-Application without the default window border as a frameless window.
The window functions are included by setting window flags in the QMainWindow like:

    MainDialog::MainDialog(QWidget *parent):
        QMainWindow(parent), currentProject(NULL), currentUser(NULL),
        aViews(new QList<AViewForm*>()),
        bViews(new QList<BViewForm*>()),
        cViews(new QList<CViewForm*>())
    {

        ui.setupUi(this);
        this->statusBar()->showMessage(tr(""));
        this->setWindowFlags(Qt::Window | Qt::FramelessWindowHint |  Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint | Qt::WindowSystemMenuHint);

        ...
     }

The MainWindow has an .ui file within, thats why I cannot inherit from QDesktopWidget.
The Problem I have now is that the Appication overlays the windows taskbar when maximizing.

My Question now: is there any posibility to find out the available height of the OS desktop without the

availableGeometry().height()

-Method of QDesktopWidget? I cannot find anything in the documentation :(

Somebody else here asked a similar Question but used a QWidget instead of a QMainWindow.

I would be glad about any hints to my Problem

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寻梦旅人 2024-12-09 19:57:34

正如你所说，你可以使用 QDesktopWidget。如果您没有从它继承的类，您可以在构造函数中创建一个仅用于检索高度的类：

QDesktopWidget w;
int availableHeight = w.availableGeometry().height();

As you say you can use QDesktopWidget. If you don't have your class inherit from it you can create one in your constructor just for retrieving the height :

QDesktopWidget w;
int availableHeight = w.availableGeometry().height();

回复收藏 0 原文

对你而言 2024-12-09 19:57:34

我猜这不是一个好的做法，但我解决了它，如下所示：

我构建了一个新类，它需要一个 MainWindow 作为参数，并带有用于缩放操作的插槽：

FullScreen::FullScreen(QMainWindow &mainWindow, QObject *parent) : QObject(parent), mainWindow(mainWindow)
{
    this->saveCurrentPosition();
}
void FullScreen::maximize()
{
    this->saveCurrentPosition();
     mainWindow.move(QApplication::desktop()->mapToGlobal(QApplication::desktop()->availableGeometry().topLeft()));
     mainWindow.resize(QApplication::desktop()->availableGeometry().size()); 
}

void FullScreen::normalize()
{

    mainWindow.move(lastGlobalPosition);
    mainWindow.resize(lastSize);
}

void FullScreen::saveCurrentPosition()
{
    lastGlobalPosition = mainWindow.mapToGlobal(mainWindow.rect().topLeft());
    lastSize = mainWindow.size();
}

现在出现的唯一问题是当应用程序全屏并且移动任务栏时。我还没有设置任何 resizeEvent

Guess thats not good practise, but i solved it as followed:

I built a new class which needs a MainWindow as param and with slots for the scaling actions:

FullScreen::FullScreen(QMainWindow &mainWindow, QObject *parent) : QObject(parent), mainWindow(mainWindow)
{
    this->saveCurrentPosition();
}
void FullScreen::maximize()
{
    this->saveCurrentPosition();
     mainWindow.move(QApplication::desktop()->mapToGlobal(QApplication::desktop()->availableGeometry().topLeft()));
     mainWindow.resize(QApplication::desktop()->availableGeometry().size()); 
}

void FullScreen::normalize()
{

    mainWindow.move(lastGlobalPosition);
    mainWindow.resize(lastSize);
}

void FullScreen::saveCurrentPosition()
{
    lastGlobalPosition = mainWindow.mapToGlobal(mainWindow.rect().topLeft());
    lastSize = mainWindow.size();
}

The only Problem which now occures is when the application is fullscreen and you move the taskbar. I have not set any resizeEvent though

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